#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int mod = 1e9 + 7;

int gcd(int a, int b)
{
    return b ? gcd(b, a % b) : a;
}

ll qmi(ll a, ll b)
{
    ll res = 1;
    while(b)
    {
        if(b & 1)res = res * a % mod;
        b >>= 1;
        a = a * a % mod;
    }
    return res;
}
struct custom_hash {
	static uint64_t splitmix64(uint64_t x) {
		x ^= x << 13;
		x ^= x >> 7;
		x ^= x << 17;
		return x; 
	}
	size_t operator () (uint64_t x) const {
		static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count(); // 时间戳
		return splitmix64(x + FIXED_RANDOM);
	}
};

void solve()
{
    string s;
    cin >> s;
    if(s.size() == 1)
    {
        if(s[0] == 'a')
        {
            cout << "ab" << endl;
        }
        else{
            s += 'a';
            cout << s << endl;
        }
        return;
    }
    for(int i = 1; i < s.size(); i++)
    {
        if(s[i] == s[i - 1])
        {
            if(s[i] == 'a')
            {
                s.insert(i, "b");
            }
            else s.insert(i, "a");
            break;
        }
        if(i == s.size() - 1)
        {
            cout << i << endl;
            if(s[i] == 'a') s += 'b';
            else s += 'a';
            break;
        }
    }
    cout << s << endl;
}

int main()
{
    int t;
    cin >> t;
    while(t--) solve();
    return 0;
}